Naphthenes groups have shaped molecule with the atomic arrangement of a closed chain (ring). When this closed chain containing only single bonds, is called cyclic hydrocarbon saturated hydrocarbons with the general formula CA. which has one double bond are called unsaturated cyclic CnH2.-21 mempunyi two double bonds are called unsaturated cyclic C.Fl 2n-4, and so on. Fuel oil (BBM) can ...
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